Ferdinand wilhelm theodor jedeck



(No Model.) y F. W. T. JEDECK.

UMBRBLLA RIB LOUKING DEVICE.

No. 522,017. Patented June 26, 1894.

r v J Z JX UNITED STATES PATENT OFFICE.

FERDINAND WILHELM THEODOR JEDECK, OF BERLIN, GERMANY.

uMBRELLA-RIB-LOCKING DEVICE.

SPECIFICATION forming part of Letters Patent No. 522,017, dated June 26,1894.

Original application iiled November 28, 1892, Serial No. 453,303.Divided and this application filed Tune 20, 1393. Serial No.

` 478.232. (No model.) Patented in England November 15, 1892, No.20,629.

To all whom it may concern.-

Beit known that I, FERDINAND WILHELM THEODOR JEDECK, a subject of theGerman Emperor, residing at Berlin, German Empire, have invented acertain new and useful Locking Device for the Ends of the Ribs inUmbrellas, of which the following is a description, a patent for saidinvention having been heretofore granted to me in Great Britain,numbered 20,629, and dated November 15, 1892.

In my improved locking device for-the ribs of umbrellas, hereinafterdescribed and claimed, I employ semi-circular bows, provided withangular arms, which preferably form right angles with the bows, and aremounted in a casing which is fixed on the umbrella stick. The pivots ofthe angular arms are provided with heads which act on a .spring as thebows turn, so'as to hold or lock the bows both in the open and theclosed position.

The special feature of my present application, which is a division ofthat filed by me in the United States Patent Office November 28, 1892,Serial No. 453,303, consists in the combination with the pivotalportions of the bows of projections or teeth which intermesh so that theturning of one will movethe other. Thus the second bow opens or closesmerely by the motion of the first bow.

Referring to the drawings to aid the description, Figures 1 to 8inclusive show the preferred form of the device, wherein the moving ofeither bow causes the movement of the other bow, and Figs. 9 and 10 thatmodiication wherein moving the bow a causes the `movement of the bow a.Figs. 10 and 12 show an arrangement of the teeth on the heads of bowswhich is slightly different from that of Figs. 1 to 8. Moreparticularly, Fig. 1 is a view of an umbrella stick, partly broken, andprovided with my locking device. The figure shows the device whenclosed. Fig. 2 illustrates the same parts, as are shown in Fig. 1, thelocking device being quite widely open. Fig. 3 is a horizontal sectionon the line of Fig. 1, and shows the parts as they appear when seen fromabove. Fig. .Lis a vertical section on the line y-y of Fig. 3. Figs. 5and 6 are detail views, showing the manner in which the angular arms'ofthe bows are housed in the casing which is fastened to the umbrellastick and the action ofthe pivots of the angular arms on the spring.Fig. 5 shows the parts in the closed, Fig. 6 in the open position. Figs.7 and 8 show the inner socket fastened to the stick and carrying thespring casing. Figs. 9 and 10 are details of that modification whereinthe bow a isadapted to move the bow o. The figures show the bowsrespectively in the closed and open positions. Figs. 11 and 12 aredetails of that modification wherein both bows are provided with gearlike projections, so as to mutually interact. The gures show the bowsrespect ively closed and open.

a. of are two semi circular bows provided with angular arms b b, b b',said angular arms preferably being arranged perpendicular to the bows,and being pivoted in the casing d,

which is fixed on the umbrella stick f by means of the socket g and ring7c, as will be hereinafter described. The pivots c c, c c of the saidangular arms b b, b b are provided with square heads h h the faces ofwhich work on the spring e, as the bows do. turn. Thus when the saidbows a a are either fully closed or open the spring e secures them inthose positions. y v

The casing d is secured on the stick -f in the following manner: Thesocket g has lateral projections t', which support the spring-plate lc.Now the casing d, being put on over the socket g and the plate k, (Fig.4) is supported at the bottom by the projections t'. Then the top of thesocket g being flanged over the neck of the casing d -the whole issecured in position on the stick ff In Figs. 9 and 10, the heads h ofthe angu lar arm b of the bow a are shown furnished with projectionslland the head h of the angular arms b of the bow a furnished with asocket l2. projections Z Z engaging with the shoulder of the socket Z2turn the bovr a.

In Figs. 11 and 12 each of the heads h h is provided with gear likeprojections/m. m as shown, and in this case the turning of either Ehebow a or o. will cause the other bow to urn.

I claim as my invention- Then as the bow a is turned thel IOO l. Thecombination in automatic locking devices for the ribs of umbrellas of acasing on the stick of the umbrella, bows adapted to lock the ribs ofthe umbrella, and angular arms on said bows pivoted in said casing andcarrying gear like devices on their pivoted portions adapted to act oneon the other when one of the bows is turned, and a spring in said casingadapted to be engaged by the pivoted portions of said angular arms,substantially as described.

2. In automatic locking devices for the ribs of umbrellas, and incombination with the umbrella stick, casing and spring as described,bows for locking the ends of the ribs furnished with angular armssubstantially at right angles to the bows and said angular arms beingpivoted in said casing, furnished with heads that are adapted to work onsaid springs and are provided with gear like projections, whereby themotion of one bow imparts like motion to the other bow, substantially asdescribed.

In witness whereof Ihave hereunto set my hand in presence of twowitnesses.

FERDINAND WILHELM TIIEODOR JEDECK. Vitnesses:

L. A. EDWARDS, W. HAUPT.

